Can anyone give me an easy ANN exercise?

Hey Guys!
Im trying to find an exercise to train my ANN knowledge, but most of them are so advanced or badly explain that i barely start.

Would anyone give me some exercise of Hopfield and feedfoward Neural network?

Nothing too hard, im still a noob :stuck_out_tongue:

Im out of ideas, anything at all would be fine. I will also share the code.
Any ideas for something that i could use? Something cool!

by the way, im using Jeff Heaton ANN Java Book.